CN108187396A - For the draining runner transformational structure of fore filter - Google Patents
For the draining runner transformational structure of fore filter Download PDFInfo
- Publication number
- CN108187396A CN108187396A CN201810046961.4A CN201810046961A CN108187396A CN 108187396 A CN108187396 A CN 108187396A CN 201810046961 A CN201810046961 A CN 201810046961A CN 108187396 A CN108187396 A CN 108187396A
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- CN
- China
- Prior art keywords
- filter
- skeleton
- cavity
- draining runner
- fore filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 17
- 238000009434 installation Methods 0.000 claims abstract description 15
- 238000004140 cleaning Methods 0.000 claims description 19
- 230000007704 transition Effects 0.000 claims description 10
- 238000001746 injection moulding Methods 0.000 claims description 9
- 238000007789 sealing Methods 0.000 claims description 5
- 238000000034 method Methods 0.000 abstract description 9
- 239000012535 impurity Substances 0.000 description 5
- 108091006146 Channels Proteins 0.000 description 3
- 210000000988 bone and bone Anatomy 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- 238000007790 scraping Methods 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 102000010637 Aquaporins Human genes 0.000 description 1
- 108010063290 Aquaporins Proteins 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011045 prefiltration Methods 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 238000005406 washing Methods 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D35/00—Filtering devices having features not specifically covered by groups B01D24/00 - B01D33/00, or for applications not specifically covered by groups B01D24/00 - B01D33/00; Auxiliary devices for filtration; Filter housing constructions
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K5/00—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary
- F16K5/04—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor
- F16K5/0435—Plug valves; Taps or cocks comprising only cut-off apparatus having at least one of the sealing faces shaped as a more or less complete surface of a solid of revolution, the opening and closing movement being predominantly rotary with plugs having cylindrical surfaces; Packings therefor the angle the spindle makes with the housing being other than 90 degrees
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Mechanical Engineering (AREA)
- Moulds For Moulding Plastics Or The Like (AREA)
Abstract
The present invention relates to a kind of draining runner transformational structures for fore filter, based on fore filter, the fore filter includes filter flask, skeleton, filter core and drainage element, drainage channel is equipped in skeleton, at least part abuts between filter flask inner wall or filter core outer wall and skeleton side wall, generates stiction F1；The skeleton bottom is equipped with a cavity, the cavity is equipped with installation opening and a passway, and bridgeware is additionally provided on cavity, and the bridgeware can rotate to open or close passway relative to cavity, frictional force when rotating member rotates between cavity is F2, the F1 ＞ F2；The bridgeware is located at passway with lower part and the direct or indirect rotary seal in filter flask bottom；First row water flow passage is formed between the drain outlet, installation opening and drainage element；Second row water flow passage is formed between passway, installation opening and drainage element.The present invention is reasonable in design, easy to process, during for fore filter, can easily switch draining runner.
Description
Technical field
The present invention relates to a kind of draining runner transformational structures for fore filter, belong to filter plant technical field.
Background technology
Fore filter of the prior art includes：Head, upper end and head connection filter flask, connect with filter flask lower end
Draining sealing element and the drainage element being connect with draining sealing element are provided with filter mechanism in filter flask.During use, water from
The water inlet of head flows into the gap between filter flask and filter mechanism, and the center of filter mechanism, Ran Houyou are flowed into after filtering
Filter mechanism center flow to the water outlet of head.
Using after a certain period of time, filter mechanism can be blocked fore filter by the impurity in water, be cleared up to protect
Filter effect is held, existing fore filter is since structure constraint, draining runner can not need to switch according to operating mode, cleaning way
It is single or intake direct washing and filtering mechanism surface by water inlet, as just rinse or pass through backwash, it is positive to rinse
Cannot free switching be needed according to operating mode between backwash, with cleaning filter mechanism more thoroughly, present invention seek to address that
This technical problem.
Invention content
It is an object of the invention to solve the deficiencies in the prior art, a kind of draining runner turn for fore filter is provided
Structure is changed, this is reasonable in design, easy to process, during for fore filter, can easily switch draining runner, to realize
The positive efficient switching rinsed and backwash, and then realize the efficient cleaning of filter mechanism.
The technical solution adopted by the present invention to solve the technical problems is：
For the draining runner transformational structure of fore filter, based on fore filter, the fore filter includes filter flask, bone
Frame, filter core and drainage element are equipped with drainage channel in skeleton, at least office between filter flask inner wall and/or filter core outer wall and skeleton side wall
Portion abuts, and generates stiction F1；
The skeleton bottom is equipped with a cavity, and the cavity is equipped with installation opening and a passway, is additionally provided with bridgeware on cavity, institute
Stating bridgeware can rotate relative to cavity to open or close passway, and frictional force when rotating member rotates between cavity is
F2, the F1 ＞ F2；
The bridgeware is located at passway with lower part and the direct or indirect rotary seal in filter flask bottom；
First row water flow passage is formed between the drain outlet, installation opening and drainage element；Passway, installation opening and drainage element
Between formed second row water flow passage.
Rotary seal：Therebetween it is rotatablely connected and seals simultaneously, water will not penetrate rotation connection contact surface.
The present invention is reasonable in design, easy to process, during for fore filter, can easily switch draining runner,
To realize the positive efficient switching rinsed and backwash, and then realize the efficient cleaning of filter mechanism.Its specific working mode is as follows：
It is backwash mode when bridgeware closing passage mouth, flow is arranged via the installation opening of drain outlet, cavity by drainage element
Go out, flow passes through the siphon power generated during draining runner and the impurity of embedded cartridge surface is sucked out, and then exhaust；Rotating member rotates
When opening passway, flow is expelled directly out via passway by drainage element, is positive rinse mode, is directly rinsed out cartridge surface
Large granular impurity.F1 ＞ F2 ensure that skeleton will not rotate synchronously when rotating member opens or closes.
Preferably, the cavity formed with skeleton clamping by outwardly protruding the outer mold cavity component of setting or integrated injection molding into
Type.
Preferably, the cavity be made of interior mold cavity component and the skeleton clamping for the setting that is recessed inwardly or integrated injection molding into
Type, when interior mold cavity component and skeleton integrated injection molding, the demoulding mouth at the top of interior mold cavity component is sealed by a sealing element.
The present invention provides the constituted modes of four kinds of cavities, can conveniently achieve the object of the present invention.
Preferably, the outer mold cavity component is all provided with finite place piece with interior mold cavity component, for limiting the angle of rotation of rotating member
Degree.Locating part is set, under the premise of ensureing that rotating member opens or closes passway completely, further rotates rotating member, including
Actively or passively, overcome stiction F1, realize the rotation of skeleton, realize that skeleton synchronizes the effect for scraping filter flask.
Preferably, the outer mold cavity component or interior mold cavity component are equipped with limiting groove, and limit convex is correspondingly provided on rotating member
Item, by the cooperation of limiting groove and limiting raised line, rotating member is rotated coaxially and is connect with outer mold cavity component or interior mold cavity component.Turn
It is circumferential between moving part and cavity to rotate, but the axial reliability and stability that cannot be generated displacement, improve the present invention.
Preferably, the drainage channel is made of several siphon parts with siphon, and the siphon part is axially clamped
In inboard wall of skeleton.
Preferably, it is directly abutted between the filter flask inner wall and skeleton side wall.When directly abutting, realized by skeleton to filter
The cleaning of bottle inner wall, easy to operate, processing cost is low.
Preferably, the skeleton side wall is axially arranged with several cleaning items, is supported indirectly with skeleton by cleaning item on the inside of filter flask
It connects.By increasing cleaning item, improve cleaning performance, a kind of more preferably realization method is provided.
Preferably, several locating slots are equipped at the top of the filter flask, filter core is equipped with several positioning pins, passes through locating slot and positioning
The cooperation of pin, is relatively fixed between filter flask and filter core.It is fixed between filter flask and filter core, skeleton is between filter flask and filter core
Gap rotates.
Preferably, the filter flask lower end is rotatably connected to operation knob, and transition piece is embedded in operation knob, and bridgeware leads to
It crosses transition piece to be fixedly connected with operation knob, drainage element is set on operation knob bottom, and the bridgeware passes through transition piece and filter flask
The indirect rotary seal in bottom.Rotating member is driven to rotate by rotating operation knob, easy to operate, realization method is easy.
The beneficial effects of the invention are as follows：The present invention is reasonable in design, easy to process, can be with during for fore filter
Easily switch draining runner, to realize the positive efficient switching rinsed and backwash, and then realize the efficient cleaning of filter mechanism.
Description of the drawings
Fig. 1 is the stereogram of the present invention；
Fig. 2 is the sectional view of embodiment 1；
Fig. 3 is the exploded view of Fig. 2 middle skeletons, cavity and rotating member；
Fig. 4 is that second row water flow passage is opening schematic diagram when embodiment 1 is just rinsing working condition；
Fig. 5 is that first row water flow passage opens schematic diagram when embodiment 1 backwashes working condition；
Fig. 6 is the exploded view of the skeleton of the embodiment of the present invention 2, cavity and rotating member；
Fig. 7 is the sectional view of the skeleton of the embodiment of the present invention 2, cavity and rotating member.
In figure：1st, filter flask, 2, operation knob, 3, drainage element, 4, skeleton, 5, cleaning item, 6, cavity, 6a, outer mold cavity component,
6b, installation opening, 6c, passway, 6d, interior mold cavity component, 7, rotating member, 8, transition piece, 9, siphon part, 10, locating part, 11, row
Aquaporin exports.
Specific embodiment
Below by specific embodiment, and with reference to attached drawing, technical scheme of the present invention is described in further detail.
Embodiment 1：
As shown in Figure 1, Figure 2, Fig. 3, Fig. 4 and the draining runner transformational structure shown in fig. 5 for fore filter, based on prefilter
Device, the fore filter include filter flask 1, skeleton 4, filter core and drainage element 3, drainage channel, 1 inner wall of filter flask are equipped in skeleton 4
And/or at least part abuts between filter core outer wall and 4 side wall of skeleton, generates stiction F1, filter is specifically chosen in the present embodiment
At least part abuts between 1 inner wall of bottle and 4 side wall of skeleton；
4 bottom of skeleton is equipped with a cavity 6, and the cavity 6 is equipped with an installation opening 6b and passway 6c, and 6 outside of cavity is equipped with
Bridgeware 7, the bridgeware 7 can rotate to open or close passway 6c relative to cavity 6, when rotating member 7 rotates with cavity 6
Between frictional force be F2, the F1 ＞ F2；
The bridgeware 7 is located at passway 6c with lower part and the direct or indirect rotary seal in 1 bottom of filter flask；
First row water flow passage is formed between the drain outlet 11, installation opening 6b and drainage element 3；Passway 6c, installation opening
Second row water flow passage is formed between 6b and drainage element 3.
The present invention is reasonable in design, easy to process, during for fore filter, can easily switch draining runner,
To realize the positive efficient switching rinsed and backwash, and then realize the efficient cleaning of filter mechanism.Its specific working mode is as follows：
As bridgeware closing passage mouth 6c, be backwash mode, flow via draining runner exit, cavity 6 installation opening 6b by arranging
Water part 3 is discharged, and flow passes through the siphon power generated during draining runner and the impurity of embedded cartridge surface is sucked out, and then exhaust；Turn
During 7 rotating opening passway 6c of moving part, flow is expelled directly out via passway 6c by drainage element 3, is positive rinse mode, is directly rushed
Wash off the large granular impurity of cartridge surface.F1 ＞ F2 ensure that skeleton 4 will not rotate synchronously when rotating member 7 opens or closes.
Specific to the present embodiment, the cavity 6 is made of the outer mold cavity component 6a for outwardly protruding setting with the clamping of skeleton 4.
Specific to the present embodiment, the outer mold cavity component 6a is equipped with locating part 10, for limiting the angle of rotation of rotating member 7
Degree.Locating part 10 is set, under the premise of ensureing that rotating member 7 opens or closes passway 6c completely, further rotates rotating member
7, overcome stiction F1, realize the rotation of skeleton 4, realize that skeleton 4 synchronizes the effect for scraping filter flask 1.
Specific to the present embodiment, the outer mold cavity component 6a is equipped with limiting groove, and limit convex is correspondingly provided on rotating member 7
Item, by the cooperation of limiting groove and limiting raised line, rotating member 7 is rotated coaxially with outer mold cavity component 6a and is connect.Rotating member 7 and type
It is circumferential between chamber 6 to rotate, but the axial reliability and stability that cannot be generated displacement, improve the present invention.
Specific to the present embodiment, the draining runner is made of several siphon parts 9, and the siphon part 9 is axial to be connected in bone
4 inner wall of frame.
Specific to the present embodiment, directly abutted between 1 inner wall of filter flask and 4 side wall of skeleton.When directly abutting, pass through bone
Frame 4 realizes the cleaning to 1 inner wall of filter flask, and easy to operate, processing cost is low.
Another realization method, 4 side wall of skeleton are axially arranged with several cleaning items 5, and 1 inside of filter flask passes through cleaning item
5 abut indirectly with skeleton 4.By increasing cleaning item 5, improve cleaning performance, a kind of more preferably realization method is provided.
Specific to the present embodiment, 1 top of filter flask is equipped with several locating slots, and filter core is equipped with several positioning pins, by fixed
The cooperation of position slot and positioning pin, is relatively fixed between filter flask 1 and filter core.It is fixed between filter flask 1 and filter core, skeleton 4 is being filtered
Gap rotation between bottle 1 and filter core.
Specific to the present embodiment, 1 lower end of filter flask is rotatably connected to operation knob 2, and transition is embedded in operation knob 2
Part 8, bridgeware 7 are fixedly connected by transition piece 8 with operation knob 2, and drainage element 3 is set on 2 bottom of operation knob, the bridgeware
7 pass through transition piece 8 and the indirect rotary seal in 1 bottom of filter flask.
Embodiment 2
The draining runner transformational structure for fore filter as shown in Figure 6 and Figure 7, basic structure with embodiment 1, difference
It is in the cavity 6 is made of the interior mold cavity component 6d for the setting that is recessed inwardly with the clamping of skeleton 4.
Embodiment described above is a kind of preferable scheme of the present invention, and not the present invention is made in any form
It limits, also other variants and remodeling under the premise of without departing from the technical solution recorded in claim, institute in the present invention
Cavity 6 is stated by outwardly protruding the outer mold cavity component 6b of setting with 4 integrated injection molding of skeleton or the cavity 6 by concaving
The interior mold cavity component 6d of setting and 4 integrated injection molding of skeleton are fallen into, as interior mold cavity component 6d and 4 integrated injection molding of skeleton,
Because mold releasability can generate demoulding mouth, the demoulding mouth at the top of interior mold cavity component 6d is sealed by a sealing element.
Claims (10)
1. for fore filter draining runner transformational structure, based on fore filter, the fore filter include filter flask,
Skeleton, filter core and drainage element, skeleton is interior to be equipped with drainage channel, it is characterised in that：Filter flask inner wall and/or filter core outer wall and skeleton side
At least part abuts between wall, generates stiction F1；
The skeleton bottom is equipped with a cavity, and the cavity is equipped with installation opening and a passway, is additionally provided with bridgeware on cavity, institute
Stating bridgeware can rotate relative to cavity to open or close passway, and frictional force when rotating member rotates between cavity is
F2, the F1 ＞ F2；
The bridgeware is located at passway with lower part and the direct or indirect rotary seal in filter flask bottom；
First row water flow passage is formed between the drain outlet, installation opening and drainage element；Passway, installation opening and drainage element
Between formed second row water flow passage.
2. the draining runner transformational structure according to claim 1 for fore filter, it is characterised in that：The cavity
It is formed by outwardly protruding the outer mold cavity component of setting with skeleton clamping or integrated injection molding.
3. the draining runner transformational structure according to claim 1 for fore filter, it is characterised in that：The cavity
It is made of interior mold cavity component and the skeleton clamping for the setting that is recessed inwardly or integrated injection molding, when interior mold cavity component and skeleton one
During injection molding, the demoulding mouth at the top of interior mold cavity component is sealed by a sealing element.
4. the draining runner transformational structure for fore filter according to Claims 2 or 3, it is characterised in that：It is described
Outer mold cavity component is all provided with finite place piece with interior mold cavity component, for controlling the rotational angle of rotating member.
5. the draining runner transformational structure according to claim 4 for fore filter, it is characterised in that：The external form
Chamber component or interior mold cavity component are equipped with limiting groove, are correspondingly provided with limiting raised line on rotating member, pass through limiting groove and limit convex
The cooperation of item, rotating member are rotated coaxially and are connect with outer mold cavity component or interior mold cavity component.
6. the draining runner transformational structure according to claim 1 for fore filter, it is characterised in that：The draining
Channel is made of several siphon parts with siphon, and the siphon part is axially connected in inboard wall of skeleton.
7. the draining runner transformational structure according to claim 1 for fore filter, it is characterised in that：The filter flask
It is directly abutted between inner wall and skeleton side wall.
8. the draining runner transformational structure according to claim 1 for fore filter, it is characterised in that：The skeleton
Side wall is axially arranged with several cleaning items, and filter flask inner wall is abutted indirectly by cleaning item with skeleton.
9. the draining runner transformational structure according to claim 1 for fore filter, it is characterised in that：The filter flask
Top is equipped with several locating slots, and filter core is equipped with several positioning pins, by the cooperation of locating slot and positioning pin, between filter flask and filter core
It is relatively fixed.
10. the draining runner transformational structure according to claim 1 for fore filter, it is characterised in that：The filter
Bottle lower end is rotatably connected to operation knob, transition piece is embedded in operation knob, bridgeware is consolidated by transition piece and operation knob
Fixed connection, drainage element are set on operation knob bottom, and the bridgeware passes through transition piece and the indirect rotary seal in filter flask bottom.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046961.4A CN108187396A (en) | 2018-01-18 | 2018-01-18 | For the draining runner transformational structure of fore filter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810046961.4A CN108187396A (en) | 2018-01-18 | 2018-01-18 | For the draining runner transformational structure of fore filter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108187396A true CN108187396A (en) | 2018-06-22 |
Family
ID=62589560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810046961.4A Pending CN108187396A (en) | 2018-01-18 | 2018-01-18 | For the draining runner transformational structure of fore filter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108187396A (en) |
Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130228143A1 (en) * | 2012-03-05 | 2013-09-05 | Schaeffler Technologies AG & Co. KG | Filter arrangement of a control valve for a camshaft adjuster |
| CN204111443U (en) * | 2014-09-15 | 2015-01-21 | 海宁市倍世环保科技有限公司 | A kind of fore filter |
| CN204910939U (en) * | 2015-07-21 | 2015-12-30 | 海宁市倍世环保科技有限公司 | Take two -sided mill to scrape and leading filter of siphon blowdown |
| CN204932997U (en) * | 2015-08-11 | 2016-01-06 | 海宁市捷米环保科技有限公司 | Slot type assists backwash fore filter |
| CN105833588A (en) * | 2016-05-30 | 2016-08-10 | 海宁市倍世环保科技有限公司 | Backwashing device of filter |
| CN106139666A (en) * | 2016-08-03 | 2016-11-23 | 厦门建霖工业有限公司 | Double-layer leaching net fore filter and method of work thereof |
| CN106422463A (en) * | 2016-10-26 | 2017-02-22 | 海宁市倍世环保科技有限公司 | Pre-filter assembly capable of being back washed |
| CN205995101U (en) * | 2016-08-03 | 2017-03-08 | 厦门建霖工业有限公司 | The flushing switching mechanism of double-layer leaching net fore filter |
| CN206285569U (en) * | 2016-11-21 | 2017-06-30 | 北京四季沐歌太阳能技术集团有限公司 | A kind of long-acting fore filter |
| CN206503204U (en) * | 2017-01-03 | 2017-09-19 | 厦门瑞尔特卫浴科技股份有限公司 | A kind of draining valve denoising structure of carry potential overflow pipe |
| CN208244230U (en) * | 2018-01-18 | 2018-12-18 | 海宁市倍世环保科技有限公司 | Draining runner transformational structure for fore filter |
-
2018
- 2018-01-18 CN CN201810046961.4A patent/CN108187396A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130228143A1 (en) * | 2012-03-05 | 2013-09-05 | Schaeffler Technologies AG & Co. KG | Filter arrangement of a control valve for a camshaft adjuster |
| CN204111443U (en) * | 2014-09-15 | 2015-01-21 | 海宁市倍世环保科技有限公司 | A kind of fore filter |
| CN204910939U (en) * | 2015-07-21 | 2015-12-30 | 海宁市倍世环保科技有限公司 | Take two -sided mill to scrape and leading filter of siphon blowdown |
| CN204932997U (en) * | 2015-08-11 | 2016-01-06 | 海宁市捷米环保科技有限公司 | Slot type assists backwash fore filter |
| CN105833588A (en) * | 2016-05-30 | 2016-08-10 | 海宁市倍世环保科技有限公司 | Backwashing device of filter |
| CN106139666A (en) * | 2016-08-03 | 2016-11-23 | 厦门建霖工业有限公司 | Double-layer leaching net fore filter and method of work thereof |
| CN205995101U (en) * | 2016-08-03 | 2017-03-08 | 厦门建霖工业有限公司 | The flushing switching mechanism of double-layer leaching net fore filter |
| CN106422463A (en) * | 2016-10-26 | 2017-02-22 | 海宁市倍世环保科技有限公司 | Pre-filter assembly capable of being back washed |
| CN206285569U (en) * | 2016-11-21 | 2017-06-30 | 北京四季沐歌太阳能技术集团有限公司 | A kind of long-acting fore filter |
| CN206503204U (en) * | 2017-01-03 | 2017-09-19 | 厦门瑞尔特卫浴科技股份有限公司 | A kind of draining valve denoising structure of carry potential overflow pipe |
| CN208244230U (en) * | 2018-01-18 | 2018-12-18 | 海宁市倍世环保科技有限公司 | Draining runner transformational structure for fore filter |
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| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20180622 |
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| WD01 | Invention patent application deemed withdrawn after publication |